| Acronym | Meaning |
| LCHAO | Linear Combination Of Hybrid Atomic Orbitals |
| PEDRI | Proton-electron Double-resonance Imaging |
| LAB | Linear Alkylbenzene |
| PSRG | Position-space Renormalization Group (for D.-of-states Calcns.) |
| MAP | Mitogen Activated Protein |
| GISPRI | Global Industrial And Social Progress Institute (Japan) |
| LEOS | Lasers And Electro-Optics Society |
| TASO | Terminal Atom Symmetry Orbital |
| TGN | Trans-Golgi Network |
| BSSRP | Basic Safety Standards For Radiation Protection |